Midea MOA01-09HFN1, Руководство по обслуживанию

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DM16-01.01.23en Kids Star Inverter
Service manual 43
11.2.5 Refrigerant Leakage Detection diagnosis and solution (PL)
Error Code
PL
Malfunction decision
conditions
●
Cooling mode:
25
℃＜
T4
≤
50
℃
|ucT1Average-ucT2Average|
＜
coolantT0
|ucT2AveCompOpen- ucT2Average |
＜
coolantT2
| ucT1AveCompOpen - T1_Average| < 3
℃
●
Heating mode:
T4
≥
0
℃
|T2Average_heat-T1_Average|
＜
heatantT0
|ucT2AveCompOpen - T2Average |
＜
heatantT2
| ucT1AveCompOpen - T1_Average| < 3
℃
Supposed causes
●
T2,T4,T1 sensor faulty
●
Indoor PCB faulty
●
System problems, such as leakage or blocking.
Trouble shooting:
Check air blowing out
from indoor air outlet
Yes
Yes
Check if T2,T1,T4
sensor is well fixed
No
Check leakage of system
No
Power off, then restart the
unit 2 minutes later.
Replace indoor PCB.
Yes
Repair the leakage and
recharge the refrigerant.
Yes
check blockIng of system and
clear the blocking